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Knife Gate Valves • Resilient Seated |
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Spec Sheet for Figure 6800 |
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Drawings for Figure 6800 — Bi-directional Knife Gate Valve |
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*AutoCAD required to open DWG (free download)
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Always verify that you have the most recent product specifications
or other documentation prior to the installation of these products. |
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| The figure 6800 knife gate valve has an all cast stainless steel body and yoke with investment cast packing follower. It is a general purpose zero-leak bidirectional shutoff valve. Perimeter gate sealing is not pressure dependent, so there is no minimum differential needed for shutoff. Port sizing is similar to schedule 40 pipe, so the valve offers unrestricted flow and minimal pressure drop. | | | | Features: |
- Bidirectional Bubble-Tight Shutoff
- Maximum Pressure: 150 PSI CWP (30" is 50 PSI CWP)
- Maximum Temperature: 176°F (80°C)
- Non-Differential Pressure Dependent Shutoff
- Cast Stainless Steel Body, Yoke, & Packing Gland
- Thrust Needle Bearing
- Combination Chest Liner & Anti-Extrusion Strip
(Anti-Extrusion Strip Only on 14" and Larger Valves)
- Wire Reinforced & Retained Resilient Seat
- Stainless Steel Position Indication Arrow
- Stainless Steel Hardware
- Machined Gland Pocket Area
- Bonnetless, Outside Screw & Yoke
- Rising Stem
- Cast Iron Hand Wheel
- Gear-Operator Standard on 30" Valve
- Available in sizes 3" to 30"
- Standard design accommodates locking device
| | Standards: |
- Face-to-Face: MSS SP-81
- Flange Drilling: ANSI B16.5 (30" to MSS SP-44 Flanges)
- Testing:
- Shell (Before Assembly): 1.5 Time Max. CWP (No Leak)
- Seat: 1.1 Times Max. CWP (No Leak)
- Material: ASME B16.34
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Figure X440
Figure 220AM
Figure 310AM/
311AM
Figure 600C/
601C
Figure 732 (Lug)
/731 (Wafer)
Figure HPA